1. Update the yum source and wait for the update to complete
Excuting an order:
yum -y update
2. Centos8 is modified to Ali's yum source
1. Obtain the Ali yum source configuration file
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-8.repo
2. Update cache
yum makecache
3. Install docker
1. Install the required software packages, yum-util provides the yum-config-manager function, and the other two are dependent on the devicemapper driver
sudo yum install -y yum-utils device-mapper-persistent-data lvm2
2. Set yum source
//We are going to use domestic
yum-config-manager \
--add-repo \
http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
3. View all docker versions in all warehouses, and select a specific version to install
yum list docker-ce --showduplicates | sort -r
4. We install the first version
sudo yum install docker-ce docker-ce-3:20.10.7-3.el8
Just enter y twice in the process.
5. Start and join the startup
sudo systemctl start docker
sudo systemctl enable docker
6. Verify whether the installation is successful (there are two parts, client and service, indicating that the docker installation and startup are successful)
docker version
4. How to Configure Alibaba Cloud Image Accelerator with Docker
1. Create a folder
sudo mkdir -p /etc/docker
2. Edit the /etc/docker/daemon.json file and enter the domestic mirror source address
Note: Alibaba Cloud and daocloud image acceleration need to register an account, Alibaba Cloud official website: https://www.aliyun.com/
After logging in, select the console, find the container mirroring service , mirroring tool, and mirroring accelerator to find the accelerator address.
sudo vi /etc/docker/daemon.json
{
"registry-mirrors": ["https://yrlbsq5s.mirror.aliyuncs.com"]
}I enter the editor, paste the esc, and then: wq! quit.
3. After modifying the address, reload the configuration file and restart the docker service
sudo systemctl daemon-reload
sudo systemctl restart docker
4. Verify that mirroring acceleration is configured successfully
sudo docker info
5. Docker's default official mirror warehouse
Including various mirrors, there is always one that suits you
